package com.sky.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.sky.dto.ShoppingCartDTO;
import com.sky.entity.ShoppingCart;

import java.util.List;

public interface ShoppingCartService extends IService<ShoppingCart> {
    // 添加购物车
    void add(ShoppingCartDTO shoppingCartDTO);

    // 查看购物车
    List<ShoppingCart> seeShoppingCart();

    // 清空购物车
    void removeByUserId(Long userId);
}
